动态自动匹配输入框,可以分为单匹配和多匹配两种，如百度搜索框和邮箱发件人的输入框。
1 AutoCompleteTextView acTextView = (AutoCompleteTextView)findViewById(R.id.AutoCompleteTextView1);2 String[] data1 = {"Android","Book","system","haha","hehe","shabi"};3 ArrayAdapter<String> adapter1 = new ArrayAdapter<String>(this,R.layout.support_simple_spinner_dropdown_item,data1);4 acTextView.setAdapter(adapter1);
1 MultiAutoCompleteTextView macTextView = (MultiAutoCompleteTextView)findViewById(R.id.MultiAutoCompleteTextView1);2 String[] data2 = {"123","12345","haharr","httt,"rr"};3 ArrayAdapter<String> adapter2 = new ArrayAdapter<String>(this,R.layout.support_simple_spinner_dropdown_item,data2);4 macTextView.setAdapter(adapter2);5 macTextView.setTokenizer(new MultiAutoCompleteTextView.CommaTokenizer());
该方法只支持逗号连接，若需要自定义分隔符，需要自定义类，然后用语句
1 macTextView.setTokenizer(new SemicolonTokenizer(‘;‘));
执行。自定义分隔符类的代码如下。
1 import android.text.SpannableString; 2 import android.text.Spanned; 3 import android.text.TextUtils; 4 import android.widget.MultiAutoCompleteTextView; 5 6 /** 7 * Created by yhw-miracle on 2017/9/13. 8 * @effect 自定义 MultiAutoCompleteTextView 添加分隔符 9 */10 11 public class SemicolonTokenizer implements MultiAutoCompleteTextView.Tokenizer {12 13 private char charS;14 private String mSTring;15 16 public SemicolonTokenizer(char charS) {17 this.charS = charS;18 mSTring = String.valueOf(charS);19 }20 21 @Override22 public int findTokenStart(CharSequence text, int cursor) {23 int i = cursor;24 25 while (i > 0 && text.charAt(i - 1) != charS) {26 i--;27 }28 while (i < cursor && text.charAt(i) == ‘ ‘) {29 i++;30 }31 32 return i;33 }34 35 @Override36 public int findTokenEnd(CharSequence text, int cursor) {37 int i = cursor;38 int len = text.length();39 40 while (i < len) {41 if (text.charAt(i) == charS) {42 return i;43 } else {44 i++;45 }46 }47 48 return len;49 }50 51 @Override52 public CharSequence terminateToken(CharSequence text) {53 int i = text.length();54 55 while (i > 0 && text.charAt(i - 1) == ‘ ‘) {56 i--;57 }58 59 if (i > 0 && text.charAt(i - 1) == charS) {60 return text;61 } else {62 if (text instanceof Spanned) {63 SpannableString sp = new SpannableString(text + mSTring);64 TextUtils.copySpansFrom((Spanned) text, 0, text.length(), Object.class, sp, 0);65 return sp;66 } else {67 return text + mSTring;68 }69 }70 }71 }
